First principles numerical demonstration of emergent decoherent histories
Within the histories formalism the decoherence functional is a formal tool to investigate the
emergence of classicality in isolated quantum systems, yet an explicit evaluation of it from …
emergence of classicality in isolated quantum systems, yet an explicit evaluation of it from …
Classicality, Markovianity, and local detailed balance from pure-state dynamics
When describing the effective dynamics of an observable in a many-body system, the
repeated randomness assumption, which states that the system returns in a short time to a …
repeated randomness assumption, which states that the system returns in a short time to a …
Capturing long-range memory structures with tree-geometry process tensors
We introduce a class of quantum non-Markovian processes—dubbed process trees—that
exhibit polynomially decaying temporal correlations and memory distributed across …
exhibit polynomially decaying temporal correlations and memory distributed across …
Classicality with (out) decoherence: Concepts, relation to Markovianity, and a random matrix theory approach
P Strasberg - SciPost Physics, 2023 - scipost.org
Answers to the question how a classical world emerges from underlying quantum physics
are revisited, connected and extended as follows. First, three distinct concepts are …
are revisited, connected and extended as follows. First, three distinct concepts are …
Process tensor distinguishability measures
G Zambon - Physical Review A, 2024 - APS
Process tensors are quantum combs describing the evolution of open quantum systems
through multiple steps of quantum dynamics. While there is more than one way to measure …
through multiple steps of quantum dynamics. While there is more than one way to measure …
Operational Metric for Quantum Chaos and the Corresponding Spatiotemporal-Entanglement Structure
Chaotic systems are highly sensitive to a small perturbation and are ubiquitous throughout
the biological sciences, the physical sciences, and even the social sciences. Taking this as …
the biological sciences, the physical sciences, and even the social sciences. Taking this as …
Everything Everywhere All At Once: A First Principles Numerical Demonstration of Emergent Decoherent Histories
Within the histories formalism the decoherence functional is a formal tool to investigate the
emergence of classicality in isolated quantum systems, yet an explicit evaluation of it from …
emergence of classicality in isolated quantum systems, yet an explicit evaluation of it from …
Equilibration of multitime quantum processes in finite time intervals
A generic non-integrable (unitary) out-of-equilibrium quantum process, when interrogated
across many times, is shown to yield the same statistics as an (non-unitary) equilibrated …
across many times, is shown to yield the same statistics as an (non-unitary) equilibrated …
Process tree: Efficient representation of quantum processes with complex long-range memory
We introduce a class of quantum non-Markovian processes--dubbed process trees--that
exhibit polynomially decaying temporal correlations and memory distributed across time …
exhibit polynomially decaying temporal correlations and memory distributed across time …
Relations between Markovian and non-Markovian correlations in multitime quantum processes
G Zambon, DO Soares-Pinto - Physical Review A, 2024 - APS
In the dynamics of open quantum systems, information may propagate in time through either
the system or the environment, giving rise to Markovian and non-Markovian temporal …
the system or the environment, giving rise to Markovian and non-Markovian temporal …